Perhaps you should try some spelling variations:
technology sector » technology series, technology social
sector functional » sector functions, aspects functional, der functional
c's communication » lea's communication, class communication, mass communication
2.3 development » 2 development, 2015 development, 1 development
development did » development desd, development d, development doi
functional ii » functional mri, functional ito, functional mix
normen c's » normen als, normen des, normen vs
did africa » did africa's, aid african, de africa
ii normen » i normen, ii formen, die normen
costs 2.3 » costs 4.2, costs 4.4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology sector functional ii normen c's communication costs 2.3 development did africa.*.